I am thinking about purchasing a DoAll 16" Vertical Bandsaw. It ihas a 3
Phase Motor and also has a blade welder. Will the blade welder work
properly off of a phase converter. Can a VFD operate the saw and the
Thanks for the help.
Yes..It "should work" on a phase converter and no the blade welder
will not work off a vfd. On the other hand...the blade welder is
single phase, so may be simply wired directly to your single phase
Nice score on the do-all. Very nice machines assuming good condition.
Parts are problematic for the older ones. By which I mean anything
made before the 60s..of which there are still a bunch around as they
last so long. On the gripping hand..you can make most anything that
breaks because they are simple.
"Pax Americana is a philosophy. Hardly an empire.
Making sure other people play nice and dont kill each other (and us)
off in job lots is hardly empire building, particularly when you give
them self determination under "play nice" rules.
Think of it as having your older brother knock the shit out of you
for torturing the cat." Gunner
*Don't* use a static phase converter -- it will only give you
about 2/3 of the motor's rated horsepower, and in particular, when you
are loading it with a heavy cut, it is quite likely to blow the start
capacitor which will switch in when the speed is loaded down enough.
A rotary converter would be a far better way to go. Pick up a
used three phase motor of about 1-1/2 to 2 times the horsepower rating
of the motor in the saw, and ask around here for pointers to how to make
it into a rotary converter.
I've been running my 16" DoAll ML on a static converter for about 10
years without a hitch, including leaning on it pretty hard with the
cable feed cutting 2" hot roll and 6" Al plate. I do have the ability to
switch over to a large rotary converter with the flip of a switch, but
have never found it necessary. IIRC the static converter is a heavy duty
3/4 to 1-1/2 HP Phase-a-matic, the saw has a 3/4 HP motor.
The blade welder is wired to the normal hot legs and coexists happily
with the static converter.